Tire-lock



W. T. CAMPBELL.

Patented Feb. 10, I920.

WALTER T. CAMPBELL, OF ST LOUIS, MISSOURI.

TIRE-LOCK.

Application filed August 19, 1919. Serial No.

1/ b all whom it may concern: 7

Be it known that I, W'ALTER T. Qniur- BELL, a citizen of the United States, residing at the city of St. Louis and State of Missouri, have invented a new and useful Tue Look, of which the following is a specification.

This invention relates to locks for locking spare tires carried on motor vehicles.

An object of the invention is to provide a lock for the purpose mentioned which is so constructed that it is practically impossible break or cut the lock or the strap which engages the tire, and in which the 10:3klS so constructed that it is impossible to insert a tool or implement to cut or tamper with the lock or the lock bolt.

With the foregoing and other objects in vieW,'I have produced an eflicient embodr ment of the invention, one form of which 1s illustrated in the accompanylng drawing, in Which Figure 1 is a plan view of the lock.

Fig. 2 isa side or end elevation of the lock in service.

' Fig. 3 is a sectional view of the lock case, show ng the locking mechanism, and the manner in which the lock bolt engages the tire engaging strap or band.

y invention comprises a flexible strap or band 1 which is preferably of very hard material such, for instance, as allo steel, so that it is impossible to cut or to leak the band or strap. The invention comprises further, a novel locking device for engaging the band or strap for locking the same around the tire. As shown, the lock comprises aease co1nposed of a base2, a portion 3 rising froln' the; V

5 closer-e11 and the lock pin 12 are flush with the surface of the 7 elements can not be he base 2 of the lock'case is provided base and arranged to containthe loclebolt; an a. mechan sm controlling the lock bolt.

with an arcuate or curved passage 5;therethrongm'designed and adaptedtorece ve the n lefof the"tire engagi g b d i i l The extremities of't he curved tothe contour of the passage 5, and one end ofthe band or strap'is-seeured or attached tothe base 20f the lock case; As

- shdwnfthe end which is permanently secured to the lock case is held by 'rivetsfi which permit theother end o'fthe strap or band to be inserted into and removed ffrom the passage s5 5; when-the "lock bolt is disengaged "there'- om Specification pf Letters Patent.

' 'ment into the passage 5, thus sage 5, such chisel ortion 4 arranged to containthef band'or strap 1 are moved to and from in looking position,

Patented Feb. 10, 1920.

The base of the lock case has an extended shoulder 7 at each side, which shoulders project beyond the lower portion of the base. This construction is important in that the shoulders function to prevent the application of any cutting tool upon the strap 1 im mediately above the ends of the base 2 of the lock case. It will be seen that if a cutting tool or'other implement is placed upon the strap 1, the shoulders 7 hold such tool above yieldingportions of the resilient strap; with the result that when the cutting tool is struck by a hammer the resiliency of the strap Will throw the cutting tool ofi, and this w ll occur without material injury to the strap due to the very hard nature thereof.

he upper wall of the passage 5, which is the concave wall of said passage, is formed with a number of shoulders or projections 8. These shoulders or projections 8 function to prevent the'insertion of any. tool or implepreventing tampering with the lock bolt.

It is apparent that if it be attempted to insert a'chisel or like implement into the asor implement wil be obstructed by the shoulders or'projections 8 and prevented from being driven into con- 1 tact with the lock bolt.

The extended portion 3 of the lock case is formed with a chamber 9 in Which the lock bolt 10 is operatively located. The. end

of the chamber 9 is closed by a closure 11 in the forn'r of a hollow plug which is screwed into the chamber 9 and locked in position by a pin '12driven into an opening formed by matching grooves in thewal'l of the closure 11 and in the adjacent portion end encircl ing a projection 14 on the'lock bolt, thereby holding said apparatus propfer-ly centered.

The end-of the strap 1 which is attached permanently to the lock case, has 'a hole therethrongh in alinement with he' 'ohamher 9, so that the lock b'oltflll'm'gay be looking position. When the lock bo'1t'10 extends the proper key. [a 0 through the registering ping ends of the stra 1 and into a recess forming the continuation of the chamber 9 in the base of the lock case. In order that the strap 1 may be fitted around tires of different sizes, the detachable end of said strap is preferably formed with a number of holes therethrough, through one of which the lock bolt may be passed as determined by the size of the tire, encircled by the strap.

The lock bolt is movable from looking position by an arm or lever 15 engaging in an appropriate notch or recess 16 in the lock bolt. The arm or lever 15 is in connection with the barrel 17 of the locking mechanism. The locking mechanism may be of any appropriate construction that will function to lock the barrel in position to l1old,the arm or lever 15 in its lowered position, thus, locking the lock bolt 10 in the position shown in Fig. 3. The lock is preferably of any known type adapted to be operated by a key and to permit removal of the key when the barrel of the lock is in position to hold the arm 15 in its lower position.

A closure or guard 18 for the key hole may be provided, the same comprising a pivotally supported disk movable to and from position to close the key-hole, and preferably having a projection 19 for manual engagement.

I prefer to use in connection with the look, a device to prevent the lock from rattling and making noise when the vehicle on which the device is mounted is in motion. As shown, such device is in the form of a leaf spring 19 secured to the base of the lock case and arranged to press resiliently against the tire holder.

. From the foregoing, it will be seen that I have provided a lock which is practically indestructible and incapable of injury by the usual means used for breaking locks. Due to the peculiar and novel construction of the cooperating parts, it is impossible to open the lock by tampering therewith, so that the lock can not be opened without the use of The provision of the arouate passage 5 with the shoulders 7 at the ends thereof and the projections 8 on the concave wall thereof makes it impossible either to cut or break the strap 1, or to inisplit a tool into the lock to release the lock I do not restrict myself to unessential deholes in the overlaptails or features of construction since it is apparent that variations may be made in the construction and arrangement of the lock I ters Patent is .chamber in said case,

without departure from the nature and principle of the invention. 7

What I claim and desire to secure by Let- 1. Atire lock, comprising a lock case, a a passage through the jections on lock case intersecting said chamber intermediate of the ends of the chamber, a strap having both ends thereof extending into said passage and being overlapped and provided with holes registering with said chamher, an axially movable lock bolt in said chamber guided in its movements by the walls at said chambe and being movable into said holes to lock both ends of said strap together, and in connection with said lock case and being movable out of said holes to release said strap, an actuator for moving said lock bolt to locking position in said holes, and an arm engaging said lock bolt for locking the same in locking position and being movable to disengage said lock bolt from looking engagement with said strap.

2. A tire lock, comprising a lock case, an arcuate passage through the lock case, prothe concave wall of said passage, a strap having one end permanently secured to the other wall of said passa e, and having the other end thereotadapte to be inserted in said passage to overlap the'secured end of said strap, the end portions of said strap having holes therethrongh, a lock bolt in the lock case movable into and out of the holes in the end portions of said stra and means for holding said lock bolt in looking position in the holes in the end portions of said strap.

3. A tire lock, comprising a lock case, an arcuate passage through the lock case, projections on the concave wall of said passage, a strap having one end thereof curved on the same radius of curvature as said passage and adapted to be inserted in said passage and having a hole therethrough, a lock bolt in the case movable into and out of said hole, and a locking arm operable to move said lock bolt out of said hole to release said strap.

4. A tire lock, comprising a lock case, an arouate passage through the lock case, projections on the concave wall of said passage, a strap having one end permanently secured to said lock case and having the other end thereof curved on the same radius of curvature as said passage and adapted to be inserted in said passage, said curved end having a hole therethrough to receive the lock belt, a chamber in the lock case, an axially movable lock bolt in said chamber, said belt being guided in its movements by the walls of said chamber and being movable into and out of said hole in the strap, a locking arm operable to move said lock bolt out of said hole to release said strap, and a spring in said case actuating said lock bolt toward locking position. 7 V

5. A tire lock, comprising a lock case; a passage through said case, a stra having one end attached to said case and he other end being insertible in and removable from said passage, a lock bolt in said case movable into and out of locking engagement with the end of said strap when said end is in said passage, and shoulders on said lock case at one side of said passage and extending relatively a considerable distance beyond that portion of the lock case at the other side of said passa 'e.

6. A tire lock, comprising a lock case, an arcuate passage through said lock case, projections on the concave Wall of said passage, shoulders on said lock case on the same side of" said passage with said projections, and extending beyond that portion of the lock case at the other side of said passage, a strap having end portions extending into said passage and one of said end portions bein removable from said passage, and a loci bolt in said case movable into and out of locking engagement with the portions of said strap which are in said passa e.

7. A tire lock, comprising a 100 case, an arcuate passage through said lock case, shoulders on said lock case on the same side of said passage With the concave Wall of said passage and extending outwardly be yond that portion of the lock case at the other side of said passage, a strap having end portions extending into said passage and one of said end portions being remov- 1 able from said passage, and a lock bolt in said case being movable into and out of looking engagement with the portions of said strap which are in said passage.

WALTER T. CAMPBELL. 

